/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/Collision/CollisionKeys.h
FCollisionParticlePairKey ( const [FGeometryParticleHandle](API\Runtime\Chaos\Chaos\FGeometryParticleHandle) * Particle0, const [FGeometryParticleHandle](API\Runtime\Chaos\Chaos\FGeometryParticleHandle) * Particle1 )